<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Dynamic Updating Line Chart</title>

    <link href="../../assets/styles.css" rel="stylesheet" />

    <style>
      
        #chart {
      max-width: 650px;
      margin: 35px auto;
    }
      
    </style>

    <script>
      window.Promise ||
        document.write(
          '<script src="https://cdn.jsdelivr.net/npm/promise-polyfill@8/dist/polyfill.min.js"><\/script>'
        )
      window.Promise ||
        document.write(
          '<script src="https://cdn.jsdelivr.net/npm/eligrey-classlist-js-polyfill@1.2.20171210/classList.min.js"><\/script>'
        )
      window.Promise ||
        document.write(
          '<script src="https://cdn.jsdelivr.net/npm/findindex_polyfill_mdn"><\/script>'
        )
    </script>

    
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.min.js"></script>
    <script src="../../../dist/apexcharts.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/vue-apexcharts"></script>
    

    <script>
      // Replace Math.random() with a pseudo-random number generator to get reproducible results in e2e tests
      // Based on https://gist.github.com/blixt/f17b47c62508be59987b
      var _seed = 42;
      Math.random = function() {
        _seed = _seed * 16807 % 2147483647;
        return (_seed - 1) / 2147483646;
      };
    </script>

    <script>
  var lastDate = 0;
  var data = []
  var TICKINTERVAL = 86400000
  let XAXISRANGE = 777600000
  function getDayWiseTimeSeries(baseval, count, yrange) {
    var i = 0;
    while (i < count) {
      var x = baseval;
      var y = Math.floor(Math.random() * (yrange.max - yrange.min + 1)) + yrange.min;
  
      data.push({
        x, y
      });
      lastDate = baseval
      baseval += TICKINTERVAL;
      i++;
    }
  }
  
  getDayWiseTimeSeries(new Date('11 Feb 2017 GMT').getTime(), 10, {
    min: 10,
    max: 90
  })
  
  function getNewSeries(baseval, yrange) {
    var newDate = baseval + TICKINTERVAL;
    lastDate = newDate
  
    for(var i = 0; i< data.length - 10; i++) {
      // IMPORTANT
      // we reset the x and y of the data which is out of drawing area
      // to prevent memory leaks
      data[i].x = newDate - XAXISRANGE - TICKINTERVAL
      data[i].y = 0
    }
  
    data.push({
      x: newDate,
      y: Math.floor(Math.random() * (yrange.max - yrange.min + 1)) + yrange.min
    })
  }
  
  function resetData(){
    // Alternatively, you can also reset the data at certain intervals to prevent creating a huge series 
    data = data.slice(data.length - 10, data.length);
  }
  </script>
  </head>

  <body>
    
    <div id="app">
      <div id="chart">
      <apexchart type="line" height="350" ref="chart" :options="chartOptions" :series="series"></apexchart>
    </div>
    </div>

    <!-- Below element is just for displaying source code. it is not required. DO NOT USE -->
    <div id="html">
      &lt;div id=&quot;chart&quot;&gt;
        &lt;apexchart type=&quot;line&quot; height=&quot;350&quot; ref=&quot;chart&quot; :options=&quot;chartOptions&quot; :series=&quot;series&quot;&gt;&lt;/apexchart&gt;
      &lt;/div&gt;
    </div>

    <script>
      new Vue({
        el: '#app',
        components: {
          apexchart: VueApexCharts,
        },
        data: {
          
          series: [{
            data: data.slice()
          }],
          chartOptions: {
            chart: {
              id: 'realtime',
              height: 350,
              type: 'line',
              animations: {
                enabled: true,
                easing: 'linear',
                dynamicAnimation: {
                  speed: 1000
                }
              },
              toolbar: {
                show: false
              },
              zoom: {
                enabled: false
              }
            },
            dataLabels: {
              enabled: false
            },
            stroke: {
              curve: 'smooth'
            },
            title: {
              text: 'Dynamic Updating Chart',
              align: 'left'
            },
            markers: {
              size: 0
            },
            xaxis: {
              type: 'datetime',
              range: XAXISRANGE,
            },
            yaxis: {
              max: 100
            },
            legend: {
              show: false
            },
          },
          
          
        },
        mounted: function () {
          var me = this
          window.setInterval(function () {
            getNewSeries(lastDate, {
              min: 10,
              max: 90
            })
            
            me.$refs.chart.updateSeries([{
              data: data
            }])
          }, 1000)
        
          // every 60 seconds, we reset the data to prevent memory leaks
          window.setInterval(function () {
            resetData()
            
            me.$refs.chart.updateSeries([{
              data
            }], false, true)
          }, 60000)
        },
      })
    </script>
    
  </body>
</html>
